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Finding the Fourth Proportional to 408,484.98, 612,727.38 and 124,177.86

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Solution

The fourth proportional to 408,484.98, 612,727.38 and 124,177.86 is: 186,266.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,484.98 : 612,727.38 = 124,177.86 : x
  2. Step 2: Convert to fraction form
    408,484.98/612,727.38 = 124,177.86/x
  3. Step 3: Cross multiply
    408,484.98x = 612,727.38 × 124,177.86
  4. Step 4: Simplify right side
    408,484.98x = 76,087,174,811.81
  5. Step 5: Solve for x
    x = 76,087,174,811.81/408,484.98
  6. Step 6: Final answer
    x = 186,266.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.